Allnet MSR IO Central Unit All4175V2 / Network Switching Device 4-Channel Relay 230Vac/10A

The Allnet MSR IO Central Unit ALL4175V2 (Code 4038816172099) is a network switching device with 4 independent relays, designed for building automation over IP. It can handle resistive loads up to 10 A at 230 VAC or 30 VDC per channel, ideal for controlling lights, motors, fans via any web browser without additional software. The intuitive web interface enables cross-platform operation (Windows, Mac, Linux, Mobile) via HTTP/HTTPS, TCP/IP, XML, and JSON protocols, allowing configuration of timers, calendars, pulses, sequences, and dependencies between relays for complex scenarios in offices or smart homes.

It features RJ45 10/100 Mbit/s Ethernet connectivity, potential-free digital inputs for external sensors (door contacts, motion), and bistable NO/NC relay outputs that maintain their state without power, ensuring reliability during power outages. The integrated measurement module records current, voltage, power, and power factor in real-time and includes LED indicators per channel as well as a manual button for local testing. Its compact DIN enclosure (approx. 72 x 90 x 60 mm) allows mounting on a standard rail or surface and can operate at temperatures from 0-50°C and humidity levels of 5-95% (non-condensing).

Supports integration with Allnet MSRo systems for device chaining and worldwide remote control via VPN or port forwarding, facilitating automatic device restarts, standby mode cancellation, or synchronization with environmental sensors. Supplied with mounting material and network cable, it offers advanced programming without subscriptions for affordable professional automation.